Labour has to be a big tent that appeals to everyone — not just its activists.

Campaigns that deliberately turn their back on particular groups are doomed to fail. Just like in London, so-called natural Labour voters alone will never be enough to win a general election.

We must be able to persuade people who previously voted Conservative that Labour can be trusted with the economy and security, as well as improving public services and creating a fairer society.

PASir Ian McKellen greets the newly elected Mayor of London Sadiq Khan ahead of his signing ceremony at Southwark Cathedral, central London.

He isn’t the only one within the Labour party that has remarked on how Corbyn style policies — more traditional socialist policies that date back to the 1970s — is not working for the political party overall.

During the elections on Friday, the Labour MP who was the former shadow chancellor before he resigned when Corbyn became leader in 2015, said he was “mortified” with the Scotland loss for Labour, that it is “a lesson in what the public want” and “what they want is a centreground, like what Sadiq is providing for London.”

“Scotland doesn’t want to go down that militant experiment” under Corbyn, Leslie added.

However, it has been less than a year since Corbyn came to power in the Labour party and criticism and infighting has dogged the group. High profile politicians like Burnham is also thinking of leaving to become the Mayor of Manchester.

Khan, in his article for The Observer, pointed out that the party needs to pull together and stop fighting to focus on the job at hand.

“Squabbles over internal structures might be important for some in the party, but it is clear they mean little or nothing to the huge majority of voters. As tempting as it might be, we must always resist focusing in on ourselves and ignoring what people really want,” he said.

“Throughout my campaign, we focused on the issues that Londoners care about most — the lack of affordable housing, transport infrastructure and fares, the NHS, the need for real neighbourhood policing and pro-business policies.

“It might seem like stating the obvious, but offering solutions to the challenges most people face every day is the only way to win elections. How can you expect to enthuse an undecided voter, or persuade a previous Tory voter, if you can’t gain their trust on the key issues, or you don’t want to talk about what they care about most?”